Heat Pump Service & Repair in the UK
A heat pump needs an annual service to run efficiently and keep its warranty valid. A service costs £100 to £200 a year, less than a boiler service in some cases, because a heat pump has fewer moving parts. Repairs are uncommon, and most manufacturers back the unit for 5 to 10 years.
Quick Answer
Heat pump servicing costs £100 to £200 a year in the UK. An annual service keeps the unit efficient and the manufacturer warranty valid, and covers checking refrigerant, the filter, electrics, controls and the heating circuit. Repairs are uncommon thanks to few moving parts.
Based on UK service provider pricing, 2026.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
What does a heat pump service include?
An annual service by a qualified engineer keeps efficiency up and protects your warranty. Most manufacturers require evidence of annual servicing for the warranty to stand.
- Check refrigerant charge and pressures
- Clean or replace filters and check the coil and fan
- Inspect electrical connections and controls
- Check the heating circuit, pump and expansion vessel
- Verify antifreeze and system pressure
- Confirm the system is meeting its design performance
| Service Type | Typical Cost |
|---|---|
| Annual heat pump service | £100–£200 |
| Service plan (monthly cover) | £10–£25 / month |
| One-off diagnostic visit | £80–£150 |
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Get a Quote →Heat pump repair costs
Heat pumps are reliable, with few moving parts, so major repairs are uncommon, and many issues are settings or controls rather than hardware. While the unit is under warranty (5 to 10 years for most brands), parts are usually covered.
| Repair | Typical Cost |
|---|---|
| Diagnostic / call-out | £80–£150 |
| Sensor or thermostat replacement | £100–£250 |
| Expansion vessel or pump | £200–£450 |
| Refrigerant leak repair and recharge | £300–£700 |
| Compressor (rare, often under warranty) | £1,000–£2,500 |
Always check warranty cover before paying for a repair, many parts are included for the first 5 to 10 years.
Heat pump maintenance tips
Keep the outdoor unit clear
Clear leaves, snow and debris from the fan and coil so airflow stays unrestricted.
Book the annual service
An annual service keeps efficiency up and protects the manufacturer warranty.
Watch your settings
Weather compensation and a steady, lower flow temperature run cheaper than turning it up and down.
Check filters
A clogged filter or strainer drops performance. Your engineer cleans these at the annual service.
Heat Pump Service FAQ
How much does a heat pump service cost?
An annual heat pump service costs £100 to £200 in the UK. Some homeowners take a monthly service plan at £10 to £25 a month, which spreads the cost and often includes priority call-out for any repairs.
How often should a heat pump be serviced?
Once a year. Most manufacturers require evidence of annual servicing for the warranty to remain valid, and a yearly check keeps the system running at its design efficiency.
Do heat pumps need much maintenance?
No. Heat pumps have fewer moving parts than boilers, so maintenance is light: an annual professional service plus keeping the outdoor unit clear of leaves, snow and debris. They typically last 15 to 20 years.
How much does heat pump repair cost?
Repairs are uncommon. A diagnostic call-out is £80 to £150, sensor or thermostat work £100 to £250, and a pump or expansion vessel £200 to £450. Major parts like the compressor are rare and often covered by the 5 to 10 year warranty.
Is heat pump servicing included in the warranty?
The warranty covers parts and faults but not the annual service itself, which you pay for separately. However, keeping up the annual service is usually a condition of the warranty staying valid, so the two go together.
Can I find a heat pump engineer near me?
Yes. You can browse MCS-certified heat pump installers and service engineers by county and town on our directory, compare their reviews, and request quotes for servicing or repair.
Find a heat pump engineer near you
Browse MCS-certified heat pump installers and service engineers, compare reviews and request quotes.
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Sources
Last updated: June 2026
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He researches every battery and inverter brand against manufacturer datasheets, MCS and Ofgem data, and feedback from the MCS-certified installers in our directory before publishing.
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